HP/Agilent 5517B laser head
Product Manual:
HP 5517B laser head is used for precision interferometry measurement and semiconductor lithography equipment
633nm stable frequency light source, with measurement accuracy up to nanometer level
Dual frequency polarized output, suitable for displacement and angle detection
Equipped with a frequency stabilization circuit, the wavelength drift is small, and the measurement is stable
± 15V DC power supply, suitable for industrial equipment power supply system
Metal shielding shell, resistant to workshop electromagnetic interference
Standard installation base, easy to fix and not easily offset
Output TTL reference signal, compatible with various acquisition boards
Good data consistency and low detection error after preheating
Universal beam specifications, compatible with multiple interference optical path accessories
Single axis measurement has a long stroke and supports multi axis spectral expansion
Class II safe laser, compliant for use in cleanrooms
Long term continuous work, long service life
Aviation plug wiring, easy and fast disassembly and replacement
Low power operation, minimal overall heat generation
Suitable for calibration scenarios of lithography machines and precision machine tools
Summary: The HP 5517B laser head has high precision and good stability, making it a specialized light source for precision displacement measurement.
Product detailed pictures:

5517B
product video
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